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Citizen Science

More than 27 000 single-use plastic bottles removed from the Thames in past 12 months

Environmental groups call for action following Thames21’s Big Bottle Count Date of release: 28 October 2019 London’s largest mass census of river plastic, the annual…

Published 28th October 201918th February 2020 Published in Latest news, Media Releases

Thames21 wins prestigious award for its plastic monitoring programme

Thames21’s plastic monitoring citizen science project won a prestigious City award last night, less than a week after it released new data revealing the summer…

Published 26th September 201810th December 2018 Published in Latest news

Thames River Watch recognised in Evening Standard awards

Thames21’s Thames River Watch project was recognised in the Evening Standard Business Awards last night. Tideway, the company building London’s super sewer, won the Corporate…

Published 28th June 201812th July 2018 Published in Latest news, Thames River Watch

Londoners urged to take back their rivers during London Rivers Week 2018

‘Massively increased opportunities’ for Londoners to explore and protect their rivers through collecting key data and joining clean up events Saturday 23 JUNE – Sunday…

Published 18th June 201818th June 2018 Published in Media Releases, Thames 21

Londoners rally to measure plastic’s hidden impact on the Thames

Thousands of wet wipes flushed down toilets are shedding plastic into the river and changing the shape of the riverbed    Date of release: Monday…

Published 26th February 201819th April 2018 Published in Media Releases

Thames21 finds a record 1,300 bottles on one site in one day, in Thamesmead

Communications Manager Ian Lamont reports on a discovery of a huge number of single us plastic bottles in Thamesmead and explains how it fits into…

Published 6th July 201729th November 2017 Published in Blog

Outfall safaris are tackling river pollution – and you can help as a citizen scientist!

Joe Pecorelli, the Zoological Society of London’s Europe Conservation Project Manager, tells us about work running across the capital to prioritise and map sources of…

Published 2nd May 201713th January 2022 Published in Blog

4,500 wet wipes found in one patch of Thames foreshore

Shock findings reveal that the Thames has the highest concentration of wet wipes ever recorded in Britain – with 277 found in just one square metre. Over 4,500…

Published 10th April 20176th February 2023 Published in Latest news

Largest citizen science Thames event of the year will measure hidden plastic menace

Large mounds are changing the shape of the Thames foreshore. On April 1, the day before the Boat Race, the public will help measure how much…

Published 23rd March 20172nd October 2017 Published in Media Releases

Thames21 data features on London TV as London Assembly investigates impact of plastic bottles

This Wednesday was an even busier one than usual for Thames21. We were interviewed by both London Live and BBC London about the huge problem…

Published 24th February 20178th June 2018 Published in Latest news

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  • Footpath 47: A natural and social sanctuary under threat
    Finding places of sanctuary and solitude in London is becoming increasingly difficult as riversides rapidly transform due to ‘bricks and mortar’ development projects. Yet in a small corner of East London, the Barking riverside offers one of...
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    Upcoming Events

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    Queenhithe, City of London
    Nov 28
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    Limekiln Dock
    Nov 28
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